Martellus Bennett — who’s caught TD passes in the Giants’ first three games this season but insists he’s “unimpressed” — revealed his secret to success is . . . not playing with Tony Romo. A spy says that the 6-foot-6 Bennett dropped by Old Homestead Steakhouse the other night with teammate Michael Coe and that the tight end was overheard telling a waiter that he now has a better quarterback throwing to him. According to a spy, Bennett was saying, “Romo isn’t in the same league as Eli Manning. Not even close.” (Bennett had zero touchdown catches for the Cowboys last season.) New York’s new fan favorite hit the meat mecca, “smiled for pics and signed napkins and receipts” for impressed fans all night.